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The Numerical Simulation of Flow Field within the Curtain Coating Die Based on Fluent
  
DOI：10.11980/j.issn.0254-508X.2017.05.003
Key Words:Fluent software  curtain coating  eddy  pressure drop  transverse distribution
Fund Project:国家自然科学基金项目(51403239)。
Author NameAffiliation
潘　岳1,2 1.中国制浆造纸研究院,北京,100102；2.制浆造纸国家工程实验室，北京，100102 
刘金刚1,2 1.中国制浆造纸研究院,北京,100102；2.制浆造纸国家工程实验室，北京，100102 
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Abstract:To improve the performance of curtain coating ,Fluent software was utilized for the flow field simulation analysis in the die head of curtain coating. The influences of the sublimation paper coatings solid content and temperature on the flow field were investigated respectively in this study. The results showed that the eddy and pressure drop at the head manifold decreased with increasing the solid content of coatings,and increased as the temperature rising. The die head manifold was easy to appear eddy when the temperature above 25℃ and the soild less then 17.7%. And the die head was easy to produce too much pressure drop when the temperature below 35℃ and the solid contant higher than 18.0%. The die head structure should be optimized.
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